Pump



Oct., w, 15939.

C, F. T'EEPLE PMP Filed Oct. l2, 1938 alli.n.linfrrlllllllllflllllllall,vlllllllillllllllllllllllillllllllllllllllims,v IIIIII INVENTOR ATTORNEY Patented Oct. 10, 1939 UNITED STATES PATENTOFFICE PUMP Charles Floyd Teeple, Moline, lll.

Application October 12, 1938, Serial No. 234,590

4 Claims.

The present invention pertains to pumps and more lparticularly to pumpsof the double-acting type. Pumps of this type, as heretoforeconstructed,.do not provide for a balanced load and 5 approximatelyequal vdischarge from both the up and down strokes of the pumpingmechanism.

` Among the objects of this invention are to provide a double-actingpump in which lthe static load on the-two sides of the pumping mechanismi will be substantially equal; to provide a pump of the characterindicated i/n which the discharge volume will be approximately equal forthe two strokes of the pumping mechanism; to provide a generallyimproved double-acting pump; tov l provide a simple, inexpensive,double-acting pump; to provide a pump of the character indicated invwhich it is unnecessary to remove the entire structure from the wellwhen repair of the inner mechanism of -the pump is required; to providea pump of the character indicated in which the interior mechanism of thepump may be removed, and with it, the foot-valve of the pumpingmechanism; and such furtherobjects, advantages, and capabilities as willhereafter appear and as are inherent in the constructionnow regardedasthe preferred embodiment ofthis invention, together with a modificationthereof, I desire the same to be understood as illustrative only andnotto be interpreted in a.

limiting sense. l

' 35 In the drawing annexed hereto and forming a part hereof, Y z

Fig. 1 represents a fragmentary longitudinal section of a pump embodyingmy present invention; 5 l Fig. 2 represents across section of thisstructure substantially along the plane indicated by the line 2-2, Fig.1;

Fig. 3 represents a fragmentary longitudinal section of a portion of'thestructure illustrated x5 in Fig. 1;

Fig. 4 represents a cheaper embodiment of th invention illustrated inFig. 1.

In Fig. l of the present drawing,.there are shown two pipes I and 2.'Itwill be understood that these pipes may be made up of one or moresections, as required, depending upon the depth pump. It will be furtherunderstood that when more than one section is used, the sections of pipeare coupled together by means of couplings,

of the well, when this structure is used as-.a well by-pass 6 by anopening or .openings 8. The 10 y upper portionof the by-pass 6 isconnected with the pipe I above the head 1, 4as recited above, by acomparable opening or openings 9.

Heads I0 and II are connected to the pipes I and 2 to direct the outflowof liquid from these 15 pipes when the pump is operated. The handle I2and the links I3 and I4 represent any suitable operating' means forcausing the two pipes to reciprocate simultaneously in oppositedirections. A stuflng box I5 surrounding the pipe 2 and 20 connected tothe head I0 prevents escape of liquid around the pipe 2, as will beunderstood.

It will be understood that the parts I0 to I5,

inclusive, are indicated more or less diagrammatically and that inactual application of the g5 principle these parts will Abe changed, asrequired.'

- The two 4sections I6 and II of pipe 2 are connected by a valvemechanism I8 having a movable valve member I9 and a spring actuator 20.30 Whenever the liquid is forced up through the pipe I, it raises themember I9 and passes into the upper section I1. When the pressure isrelieved and no longerholds the valve open,

then the spring 20-causes it to close, preventing 35 'back-flow of theliquid 'in the pipe 2. A piston 2I is connected to the lower end portionof the pipe 2, being held in place thereon by the ring 22. `Openings 23just above the piston 2I permit liquid to pass from the interior ofcylinder 3 into 40 the interior of pipe 2. When the piston 2I movesdownwardly, liquid enters the cylinder throughan opening or openings 24near the top thereof and passes downwardly through a series of openings25 controlled by a valve 26 which is spring- 45 actuated by the spring21. The openings 25 extend through a flange 28 which fits closely withinthe wall of the cylinder 3. There is another i ange 28a which islikewise provided with openings 25 for the passage of fluids which leavethe 50 by-pass 6 by way of the openings 9. These upper 4openings 25 arecontrolled by a valve 29 which is actuated into closed position by aspring 30. It will therefore be seen that, as the piston 2| movesdownwardly, the liquid isforced out through the openings 8 of theby-pass 6, through the openings 9 and 25, through the pipe above thecylinder, 'and from here out through the head IU. At the same time, theliquid is drawn in through the openings 24 and downwardly through theopenings 25 into the section of the cylinder above the piston 2|. Now,when the direction of travel of the pipes is reversed, the piston movesupwardly relatively to the cylinder and liquid is drawn through thelower valve 4 into the lower end of the cylinder to be later forced outthrough the openings 8. The opening through the valve 4 is controlled bya ball 3|. As the.piston 2| moves upwardly, the liquid is forced outthrough the openings 23 and upwardly through the valve I8 into the uppersection of the pipe 2, from where it flows out through the head to bedischarged from the pump.

A pin 32 is removably secured in the wall of the pipe 2, above thepacking nut l5 at such a point that the lower end of the pipe when thepin 32 rests on the nut I5, will not engage the screw-threaded,substantially cylindrical lug 33 of the valve 4. However, when it isdesired to remove the inner portion of this valve Without withdrawingthe pipe I and cylinder 3, the pin 32 is removed from the pipe 2 andthis latter is allowed to rest on top of the lug 33. Now, when the pipe2 is turned with relation to `the pipe the screw threads in the lowerend of theA pipe 2 will engage the corresponding threads of the lug 33,and the two parts will be screwed together. After this, the pipe 2 maybel lifted and it will pull the inside of the valve 4 out of its seatand it can be removed from the cylinder by lifting the pipe 2 andunjointing the various sections. After suitable repairs have been madeto any part of the underground structure, the parts are reassembled andthe pipe 2 unscrewed from the lug 33. The part of pipe above thecylinder has a slightly larger internal diameter than the diameter ofthe cylinder so that the parts may be easily withdrawn after they havebeen removed from the cylinder.

The principle of operation of the structure shown in Fig. 4 is identicalwith that of the structure shown in Fig. 1, though the apparatus differsslightly. At the lower end of the cylin der, a valve I9, 20 is used inplace of the valve 4 for an obvious reason. A head cap 34 is applied tothe upper end of the cylinder 3 and has an opening therethrough for theadmission of uid to the upper end of the cylinder. This opening isclosed by the valve I9, 2|). An outlet member 35 has its upper endscrew-threaded for connection to a valve member |8a. This valve memberis, in general, similar to the valve |8. From this valve member leads apipe a which serves the same purpose as the pipe llin moving the'cylinder 3 up and down. The section 36 of the pipe 2 is connected to thesection 31 thereofby means of a valve 38 similar to |8a at the lower endof the pipe la. On the lower portion lof the section 3l of pipe 2 isasuitably adjustable means 39 having lugs 40 which may engage cooperatinglugs 4| on a gland 42. If it is desired to tighten the packing below thegland 42, the pipe 2 is lowered until the lugs 4D engage the lugs 4|,when the pipe is rotated, causing the gland 42 to be screwed in so as tocompress the packing. In this way, the packing around theportion of thepipe 31 where it passes through the packing may be compressed intosufficiently tight engagement with the pipe to prevent leakage of liquidout of the top of the cylinder around the pipe.

'I'his type of construction is much less expensive to manufacture thanthat illustrated by Fig. 1 and may be sold at a price which will make itattractive.

Having now described my invention, I claim:

1. In a pumping mechanism, a pump cylinder A having a by-pass cavityextending longitudinally thereof and externally thereto from a pointadjacent the lower end of the cylinder to a point above the head of thecylinder, a pipe-connected to said cylinder into which the by-passopens, a valve to prevent back. flow of liquid in said pipe and by-passinto said cylinder, the interior of the lower end of the cylinder beingconnected by an opening or openings with the lower end of the by-pass,said cylinder having adjacent its opposite end an opening or openingsfor admission of liquid into the upper end portion of the cylinder, saidcylinder having at its lower end a valvecontrolled admission port foradmitting liquid into the lower end of the cylinder and preventingreturn thereof through said inlet opening, a valve in the upper portionof the cylinder to control admission of liquid into the upper end of thecylinder and to prevent return thereof through the upperliquid-admission opening or openings, a, piston movable longitudinallyof the cylinder in thecentral portion thereof, a pipe connected to saidpiston and serving vas a piston rod therefor, said pipe having anopening or openings through the wall thereof for the admission of liquidfrom the cylinder into the pipe, valves controlling upward and reverseflow of liquid from and to said cylinder by way of the last lastmentioned opening or openings, and mechanism for producing simultaneousalternate and opposite reciprocation of said piston and cylinder.

2. In a pumping mechanism, a hollow piston rod having a valve thereinarranged to permit upward flow of liquid through the hollow rod and toprevent return flow thereof, a piston secured to the lower end portionof said piston rod, said piston rod having an opening or openingsthrough the wall thereof and connecting the spaces within and outside ofthe rod, a pump cylinder in which said piston reciprocates between theupper and lower ends thereof, the opening or openings in the piston rodbeing located above the piston and receiving liquid from that part ofthe cylinder above the piston, the piston rod causing reciprocation ofthe piston relatively to the cylinder, a passageway external to thecylinder having an open connection with the lower end portion of thecylinder and a second opening beyond the upper end of the cylinderwhereby to permit'liquid in the lower end portion of the cylinder to beforced out therefrom and through said passageway, a pipe connected withsaid passageway and receiving liquid therefrom, a valve controlling flowof liquid from the passageway to said pipe and return, a closure memberfor the lower end of the cylinder having a valvecontrolled openingtherethrough, said cylinder having a valve member in its upper portionto control the passage of liquid into and from said upper portion ofsaid cylinder, and mechanism for producing simultaneous alternate andopposite reciprocation of said piston and cylinder.

3.111 a pumping mechanism, a cylinder having in its upper and lower endportions liquidportion of the cylinder and beyond the upper 75 je y;

end portion thereof, a pipe connected to the exit from said by-pass andhaving a valve therein to preventl return ow of liquid through thebypass, a piston reciprocable in said cylinder, a pipe connected to saidpiston and serving to cause reciprocation thereof, said pipe havinganopening or openings through theI Wall thereof above the piston throughwhich water is received by the pipe from the portion of the cylinderabove the piston, a valve in said pipe to prevent return flow of liquidthrough said 'pipe and into said cylinder, and means for reciprocatingsaid piston and cylinder in opposite directions -simultaneously.

4. A pumping mechanism, comprising a pump cylinder, a piston in saidcylinder arranged for pumping upon reciprocation of said piston ineither direction within said cylinder, said cylinder being provided atpoints beyond the maximum stroke of said piston in each direction withan inlet port, valves to allow inlet and to prevent outlet of liquidthrough said ports, a Apipe connected to saidy piston and extending outof one end of said cylinder for effecting recipro- Y cation of saidpiston'with respect to the cylinder, said pipe being provided with anopening for communicating liquid from the space between the piston andsaid end of the cylinder into said pipe, a second pipe connected to saidcylinder, means to provide liquid communication between the second pipeand the space at the opposite end of the piston, valve means to preventback flow o! liquid from each of said pipes to each of said spaces, andmeans to .effect reciprocation of the first pipe and its associatedpistonvand of the second pipe and its associated cylinder simultaneouslyin opposite directions.

CHARLES FLOYD TEEPLE.

